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