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