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