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