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