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