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)(11,16)(12,13)(14,15)(17,18)(19,23)(20,24)(21,22)(25,26,29,32)(27,28,31,30)(2,4)(6,8)(9,11)(10,13)(12,14)(15,16)(17,19,21,24)(18,20,22,23)(25,27,29,31)(26,30,32,28)(3,7)(6,8)(10,15)(11,12)(18,22)(20,23)(25,28,29,30)(26,31,32,27)(1,3)(2,6)(4,8)(5,7)(9,12,14,11)(10,16,15,13)(17,20)(18,19)(21,23)(22,24)(25,28)(26,27)(29,30)(31,32)(1,4,5,2)(3,8,7,6)(9,13,14,16)(10,11,15,12)(17,19)(18,20)(21,24)(22,23)(25,27)(26,28)(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.