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