One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,6)(3,5,8,4)(10,14)(12,15)(19,23)(22,24)(25,26,28,30)(27,31,32,29)(1,3)(2,4)(5,6)(7,8)(10,14)(11,16)(18,21)(22,24) involution — undirected(1,4,7,5)(2,8,6,3)(9,10)(11,15)(12,16)(13,14)(17,18)(19,22)(20,21)(23,24)(1,5,7,4)(2,8,6,3)(9,11,13,16)(10,15,14,12)(25,27,28,32)(26,29,30,31)(1,6,7,2)(3,5,8,4)(9,12,13,15)(10,16,14,11)(17,19)(18,22)(20,23)(21,24)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.