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