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