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