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)(15,23)(16,18)(17,28)(19,22)(20,27)(21,30)(24,33)(25,34)(26,35)(29,32)(31,42)(36,43)(37,41)(38,40)(39,44) involution — undirected(6,9)(7,11)(13,15)(14,20)(16,23)(17,25)(18,27)(19,33)(21,34)(22,35)(24,29)(26,32)(28,37)(30,41)(31,44)(36,39)(38,42)(40,43) involution — undirected(2,4)(13,16,18,14)(15,24,27,35)(17,21,30,28)(19,22,32,29)(20,33,23,26)(25,39,41,38)(31,42,43,36)(34,40,37,44)(6,9)(10,12)(13,17,18,30)(14,21,16,28)(15,25,27,41)(19,31,32,43)(20,34,23,37)(22,36,29,42)(24,38,35,39)(26,40,33,44)(5,7,8,11)(6,10,9,12)(14,16)(15,26)(19,32)(20,35)(21,28)(23,24)(25,40)(27,33)(31,43)(34,39)(37,38)(41,44)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.