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