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