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