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