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