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