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