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