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