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