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