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