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