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