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