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