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