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