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