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