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