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