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