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