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