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