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