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