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)(15,26)(16,22)(17,31)(18,24)(19,25)(20,23)(21,29)(27,35)(28,41)(30,37)(32,44)(33,40)(34,38)(36,43)(39,42) involution — undirected(5,6)(7,10)(8,9)(11,12)(13,15,19,29)(14,21,25,26)(16,17,27,20)(18,30,33,42)(22,23,35,31)(24,39,40,37)(28,34,43,32)(36,38,41,44)(2,4)(13,16,20,15,19,27,17,29)(14,22,23,26,25,35,31,21)(18,30,34,28,33,42,32,43)(24,37,38,41,40,39,44,36)(5,7,8,11)(6,10,9,12)(13,17,19,20)(14,23,25,31)(15,27,29,16)(18,32,33,34)(21,35,26,22)(24,38,40,44)(28,42,43,30)(36,39,41,37)(6,9)(10,12)(13,18,17,32,19,33,20,34)(14,24,31,44,25,40,23,38)(15,28,16,30,29,43,27,42)(21,36,35,39,26,41,22,37)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.