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