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