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