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