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