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