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