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