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