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