\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 (2) at (0, 0) {$2$};
	\node (4) at (1, 0) {$4$};
	\node (6) at (6, 0) {$6$};
	\node (3) at (9, 0) {$3$};
	\node (1) at (26, 0) {$1$};
	\node (5) at (31, 0) {$5$};

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