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