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