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