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