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