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