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