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