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