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