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