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