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)(11,13)(12,16)(14,15)(17,18,23,24)(19,20,22,21)(25,26,29,28)(27,30,31,32)(1,3,6,5)(2,7,4,8)(10,15)(11,12)(17,19,23,22)(18,21,24,20)(27,31)(30,32)(3,5)(7,8)(9,11,14,12)(10,13,15,16)(17,20,23,21)(18,19,24,22)(25,27,29,31)(26,30,28,32)(1,4,6,2)(3,7,5,8)(9,12,14,11)(10,13,15,16)(17,21,23,20)(18,19,24,22)(1,5,6,3)(2,7,4,8)(9,13)(10,11)(12,15)(14,16)(17,22,23,19)(18,20,24,21)(25,28,29,26)(27,32,31,30)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.