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