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