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