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