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