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