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