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