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