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