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