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