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