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