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