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