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