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