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