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