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