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