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