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