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