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