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