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