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