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