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)(11,14)(12,16)(13,15)(17,18,22,24)(19,21,23,20)(25,26,28,30)(27,31,32,29)(1,3,6,4)(2,7,5,8)(9,11,13,16)(10,14,15,12)(17,19,22,23)(18,20,24,21)(25,27)(26,29)(28,32)(30,31)(2,5)(7,8)(9,11)(10,12)(13,16)(14,15)(17,20,22,21)(18,23,24,19)(25,27,28,32)(26,29,30,31)(1,4,6,3)(2,8,5,7)(9,11)(10,12)(13,16)(14,15)(17,21,22,20)(18,23,24,19)(25,26)(27,29)(28,30)(31,32)(1,5,6,2)(3,8,4,7)(9,12)(10,11)(13,14)(15,16)(17,18)(19,20)(21,23)(22,24)(25,27)(26,29)(28,32)(30,31)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.