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