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