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