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