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