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