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