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