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