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