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