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