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