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