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