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