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