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