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