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)(17,18,20,26,22,25,21,23)(19,24,28,32,29,31,27,30)(2,4)(5,6,8,7)(10,14)(15,16)(18,23)(19,27)(20,21)(24,31)(25,26)(28,29)(5,6,8,7)(9,11,13,12)(10,15,14,16)(17,19,20,28,22,29,21,27)(18,24,26,32,25,31,23,30)(5,7,8,6)(9,12,13,11)(10,15,14,16)(18,25)(23,26)(24,31)(30,32)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.