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