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