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