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