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