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