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