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