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