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