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)(17,18,23,28)(19,25,26,20)(21,27,22,24)(29,30,31,32)(10,13)(11,15)(18,24)(19,26)(20,30)(21,22)(25,32)(27,28) involution — undirected(2,5)(6,8)(9,10)(11,14)(12,13)(15,16)(17,19,23,26)(18,25,28,20)(21,31,22,29)(24,30,27,32)(1,3,4,7)(2,6,5,8)(10,13)(14,16)(17,20)(18,26)(19,28)(21,30)(22,32)(23,25)(24,31)(27,29)(9,11,12,15)(10,14,13,16)(17,21,23,22)(18,24,28,27)(19,29,26,31)(20,30,25,32)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.