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