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