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