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)(17,18,22,25)(19,23,21,30)(20,27,29,31)(24,26,32,28)(1,3,5,8)(2,6,4,7)(9,10)(11,15)(12,14)(13,16)(17,19,22,21)(18,23,25,30)(20,26,29,28)(24,27,32,31)(1,4,5,2)(3,7,8,6)(9,11)(10,13)(12,16)(14,15)(17,20,19,26,22,29,21,28)(18,24,30,31,25,32,23,27)(3,8)(6,7)(11,16)(13,15)(17,19,22,21)(18,23,25,30)(20,28,29,26)(24,31,32,27)(10,14)(13,15)(20,29)(24,32)(26,28)(27,31) 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.