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