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