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