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