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