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