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