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