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