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