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