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