\documentclass{standalone}
\usepackage[paperwidth=\maxdimen,paperheight=\maxdimen]{geometry}
\usepackage{pgf,tikz}
\begin{document}

\begin{tikzpicture}[x=24pt, y=24pt, draw=white, double=black, line width=2.1pt]
	\node (3) at (1, 0) {$3$};
	\node (1) at (7, 0) {$1$};
	\node (6) at (11, 0) {$6$};
	\node (4) at (27, 0) {$4$};
	\node (2) at (37, 0) {$2$};
	\node (5) at (50, 0) {$5$};

	\draw[double=white,draw=green] (4) -- (27, 8) -- (50, 8) -- (5);
	\draw[double=white,draw=blue] (2) -- (37, -6) -- (26, -6) -- (26, 8) -- (10, 8) -- (10, -5) -- (1, -5) -- (3);
	\draw[double=white,draw=red] (6) -- (11, -17) -- (53, -17) -- (53, 23) -- (7, 23) -- (1);
	\draw[double=green] (3) -- (0, 0) -- (0, -10) -- (20, -10) -- (20, 6) -- (33, 6) -- (33, -4) -- (41, -4) -- (41, 15) -- (12, 15) -- (12, -1) -- (9, -1) -- (9, 17) -- (43, 17) -- (43, -7) -- (31, -7) -- (31, 4) -- (22, 4) -- (22, -15) -- (51, -15) -- (51, 1) -- (49, 1) -- (49, -13) -- (24, -13) -- (24, 2) -- (29, 2) -- (29, -9) -- (45, -9) -- (45, 19) -- (6, 19) -- (6, -4) -- (15, -4) -- (15, 12) -- (38, 12) -- (38, -1) -- (36, -1) -- (36, 10) -- (17, 10) -- (17, -7) -- (4, -7) -- (4, 21) -- (47, 21) -- (47, -11) -- (27, -11) -- (4);
	\draw[double=blue] (5) -- (50, -14) -- (23, -14) -- (23, 3) -- (30, 3) -- (30, -8) -- (44, -8) -- (44, 18) -- (8, 18) -- (8, -2) -- (13, -2) -- (13, 14) -- (40, 14) -- (40, -3) -- (34, -3) -- (34, 7) -- (19, 7) -- (19, -9) -- (2, -9) -- (2, 24) -- (52, 24) -- (52, -16) -- (21, -16) -- (21, 5) -- (32, 5) -- (32, -5) -- (42, -5) -- (42, 16) -- (11, 16) -- (6);
	\draw[double=red] (1) -- (7, -3) -- (14, -3) -- (14, 13) -- (39, 13) -- (39, -2) -- (35, -2) -- (35, 9) -- (18, 9) -- (18, -8) -- (3, -8) -- (3, 22) -- (48, 22) -- (48, -12) -- (25, -12) -- (25, 1) -- (28, 1) -- (28, -10) -- (46, -10) -- (46, 20) -- (5, 20) -- (5, -6) -- (16, -6) -- (16, 11) -- (37, 11) -- (2);
\end{tikzpicture}
\end{document}