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