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