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