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