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