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