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