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