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