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