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