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