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