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