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