One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(13,14)(15,23)(16,27)(17,30)(18,21)(19,26)(20,28)(22,33)(24,34)(25,37)(29,38)(31,35)(32,36)(39,41)(40,43)(42,44)(2,4)(5,6)(7,10)(8,9)(11,12)(13,15)(14,19)(16,24)(17,31)(18,25)(20,34)(21,35)(22,37)(23,30)(26,33)(27,39)(28,42)(29,40)(32,41)(36,43)(38,44) involution — undirected(6,9)(10,12)(13,16,18,29)(14,20,21,36)(15,24,25,40)(17,32,33,28)(19,34,35,43)(22,38,30,27)(23,39,37,44)(26,42,31,41)(5,7)(6,10)(8,11)(9,12)(15,25)(19,35)(23,37)(24,40)(26,31)(34,43)(39,44)(41,42) involution — undirected(7,11)(10,12)(14,21)(19,35)(20,36)(22,30)(23,37)(27,38)(34,43)(39,44) 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.