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