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