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