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