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