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