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