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