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