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