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