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