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