\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 (1) at (0, 0) {$1$};
	\node (5) at (2, 0) {$5$};
	\node (3) at (3, 0) {$3$};
	\node (4) at (7, 0) {$4$};
	\node (8) at (13, 0) {$8$};
	\node (6) at (17, 0) {$6$};
	\node (7) at (21, 0) {$7$};
	\node (2) at (24, 0) {$2$};

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