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