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