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)(17,18,24,22)(19,29,31,25)(20,27,21,26)(23,28,30,32)(33,34,39,43)(35,44,45,40)(36,41,47,46)(37,38,42,48)(1,3,8,15)(2,9,12,13)(4,14,5,6)(7,11,10,16)(17,19)(18,25)(20,30)(21,23)(22,29)(24,31)(26,32)(27,28)(35,45)(36,47)(40,44)(41,46)(1,4,8,5)(2,10,12,7)(3,14,15,6)(9,16,13,11)(17,20,24,21)(18,26,22,27)(19,30,31,23)(25,32,29,28)(33,35,39,45)(34,40,43,44)(36,42,47,37)(38,46,48,41)(1,5,8,4)(2,10,12,7)(3,6,15,14)(9,16,13,11)(17,21,24,20)(18,27,22,26)(19,30,31,23)(25,32,29,28)(33,36)(34,41)(35,42)(37,45)(38,40)(39,47)(43,46)(44,48)(1,6)(2,11)(3,4)(5,15)(7,13)(8,14)(9,10)(12,16)(17,22,24,18)(19,29,31,25)(20,27,21,26)(23,32,30,28)(33,37,39,42)(34,38,43,48)(35,36,45,47)(40,46,44,41)(1,7,8,10)(2,5,12,4)(3,11,15,16)(6,13,14,9)(17,23,24,30)(18,28,22,32)(19,21,31,20)(25,27,29,26)(33,38)(34,42)(35,46)(36,44)(37,43)(39,48)(40,47)(41,45)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.