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