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