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