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