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