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