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