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