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