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