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