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