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