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