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)(17,18,22,25,21,24,26,19)(20,28,30,27,29,23,31,32)(2,4)(10,13)(14,16)(17,19,26,24,21,25,22,18)(20,27,31,28,29,32,30,23)(1,2,3,4)(6,8)(9,11,12,15)(10,14,13,16)(17,20)(18,23)(19,27)(21,29)(22,30)(24,28)(25,32)(26,31)(10,13)(14,16)(20,29)(23,28)(27,32)(30,31) 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.