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