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