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