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