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