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