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