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