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