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