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