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