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