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