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