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