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