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