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