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