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