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