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