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