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