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