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