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