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