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)(17,18,23,27)(19,25,29,22)(20,24,21,26)(28,30,31,32)(34,39)(35,42)(41,47)(43,45)(1,3,7,12)(2,8,11,16)(4,15,9,6)(5,10,14,13)(17,19,23,29)(18,22,27,25)(20,28,21,31)(24,32,26,30)(33,34,38,39)(35,40,42,36)(37,41,46,47)(43,48,45,44)(3,12)(6,15)(8,16)(10,13)(17,20,23,21)(18,24,27,26)(19,28,29,31)(22,32,25,30)(33,35,38,42)(34,40,39,36)(37,45,46,43)(41,44,47,48)(1,4)(2,5)(3,6)(7,9)(8,13)(10,16)(11,14)(12,15)(17,19)(18,25)(20,28)(21,31)(22,27)(23,29)(24,30)(26,32)(33,36)(34,35)(37,44)(38,40)(39,42)(41,43)(45,47)(46,48) involution — undirected(1,5)(2,9)(3,13)(4,11)(6,16)(7,14)(8,15)(10,12)(17,21,23,20)(18,26,27,24)(19,28,29,31)(22,32,25,30)(33,34)(35,40)(36,42)(37,41)(38,39)(43,48)(44,45)(46,47)(1,6)(2,10)(3,4)(5,16)(7,15)(8,14)(9,12)(11,13)(17,22,23,25)(18,19,27,29)(20,30,21,32)(24,31,26,28)(33,37,38,46)(34,41,39,47)(35,43,42,45)(36,44,40,48)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.