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)(11,13)(12,15)(14,16)(19,24)(20,22)(25,26,28,30)(27,29,31,32)(2,6)(3,8)(9,11)(10,15)(12,14)(13,16)(17,18,21,23)(19,20,24,22)(27,31)(29,32)(3,8)(4,7)(11,12)(13,15)(17,19,21,24)(18,22,23,20)(25,27,28,31)(26,29,30,32)(1,3,5,8)(2,7,6,4)(9,12,14,11)(10,15,16,13)(17,19)(18,20)(21,24)(22,23)(25,26)(27,29)(28,30)(31,32)(1,4,5,7)(2,8,6,3)(9,13,14,15)(10,11,16,12)(17,20)(18,19)(21,22)(23,24)(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.