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