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