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