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