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