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