One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,12,6,10,4,17)(3,13,14,27,16,8,20,24)(7,11,21,26,18,25,19,9)(15,29,31,28,30,23,32,22)(1,3,6,16)(2,8,10,13)(4,14,5,20)(7,15,18,30)(9,22,26,28)(11,23,25,29)(12,27,17,24)(19,31,21,32)(1,4,18,21)(2,9,25,12)(3,14,30,32)(5,7,19,6)(8,22,29,27)(10,26,11,17)(13,28,23,24)(15,31,16,20)(3,15)(8,23)(13,29)(14,31)(16,30)(20,32)(22,24)(27,28) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.