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