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