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