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