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