\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 (6) at (0, 0) {$6$};
	\node (3) at (1, 0) {$3$};
	\node (5) at (14, 0) {$5$};
	\node (4) at (17, 0) {$4$};
	\node (2) at (25, 0) {$2$};
	\node (1) at (32, 0) {$1$};

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