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