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