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