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