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