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