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