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