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