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