One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,6,7,8)(17,18,23,28)(19,29,31,20)(21,26,22,27)(24,30,32,25)(2,5)(6,8)(9,10)(11,15)(12,14)(13,16)(17,19,22,30,23,31,21,25)(18,24,26,20,28,32,27,29)(1,3,4,7)(2,6,5,8)(9,11)(10,13)(12,16)(14,15)(17,20,21,24,23,29,22,32)(18,25,27,31,28,30,26,19)(11,16)(13,15)(17,21,23,22)(18,26,28,27)(19,30,31,25)(20,24,29,32)(10,14)(13,15)(19,31)(20,29)(24,32)(25,30) 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.