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