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