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