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