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