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