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