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