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