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