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