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