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