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