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