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