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