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