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