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