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