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