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