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