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