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