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