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