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