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