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