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