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