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