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