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