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