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