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