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