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