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