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