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