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