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