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