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