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