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