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