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