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