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