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