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