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