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