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