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