How do you draw the Petersen graph in LaTeX?

[Mandelbroth]

How would one construct a graph, like the Petersen graph, in LaTeX? Is there a good package to use for it?

Edit: I should mention that I'm having trouble using instructions (which are not always consistent) that I'm finding on Google.

 

[micromass]

http://www.math.ubc.ca/~cautis/tools/xypic.pdf
http://texdoc.net/texmf-dist/doc/generic/xypic/xyrefer.pdf

 

[D H]

I like gnuplot. It provides a number of terminal settings aimed specifically at TeX / LaTeX. The graphs can be made to look very professional (c.f. Excel and Matlab, which excel in producing overly glitzy, non-professional graphs).

 

[Mandelbroth]

http://www.math.ubc.ca/~cautis/tools/xypic.pdf
http://texdoc.net/texmf-dist/doc/generic/xypic/xyrefer.pdf

Helpful as ever. Thank you!