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