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