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