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