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