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