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