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