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