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