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