One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(3,9)(4,12)(7,10)(8,13)(15,16)(17,18)(19,24)(20,30)(21,34)(22,38)(23,27)(25,32)(26,36)(28,44)(29,43)(31,42)(33,46)(35,39)(37,48)(40,47)(41,45) involution — undirected(1,2,5,8)(3,10,9,15)(4,13,12,6)(7,14,16,11)(17,19,23,22)(18,24,27,38)(20,31,33,28)(21,29,37,36)(25,40,41,39)(26,34,43,48)(30,42,46,44)(32,47,45,35)(17,20)(18,25)(19,28)(21,35)(22,31)(23,33)(24,39)(26,42)(27,41)(29,45)(30,34)(32,36)(37,47)(38,40)(43,44)(46,48) involution — undirected(1,3,5,9)(2,7,8,16)(4,14,12,11)(6,15,13,10)(17,19,23,22)(18,24,27,38)(20,28,33,31)(21,29,37,36)(25,39,41,40)(26,34,43,48)(30,44,46,42)(32,35,45,47)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.