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