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