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)(17,18,21,20)(19,23,24,22)(25,26,28,30)(27,31,32,29)(1,3)(2,6)(4,7)(5,8)(9,11,14,13)(10,15,12,16)(17,19)(18,22)(20,23)(21,24)(25,27)(26,29)(28,32)(30,31)(2,7)(4,6)(11,13)(15,16)(17,18,21,20)(19,22,24,23)(25,27,28,32)(26,29,30,31)(1,3)(2,6)(4,7)(5,8)(9,12,14,10)(11,15,13,16)(17,20,21,18)(19,22,24,23)(25,26)(27,29)(28,30)(31,32)(1,4,5,6)(2,3,7,8)(9,13,14,11)(10,15,12,16)(17,19)(18,23)(20,22)(21,24)(25,27)(26,29)(28,32)(30,31)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.