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