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)(19,21)(20,25)(22,31)(23,24)(26,30)(27,28)(29,32)(33,34,39,40)(35,42,36,41)(37,43,47,45)(38,46,48,44)(1,2,6,3)(4,7,12,9)(5,8,13,10)(11,14,16,15)(17,19,23,22)(18,21,24,31)(20,26,29,28)(25,30,32,27)(34,40)(37,47)(41,42)(44,46)(5,13)(8,10)(11,16)(14,15)(18,24)(19,22)(25,32)(26,28)(33,35,39,36)(34,41,40,42)(37,44,47,46)(38,43,48,45)(1,3,6,2)(4,7,12,9)(5,10,13,8)(11,14,16,15)(17,20)(18,25)(19,26)(21,30)(22,28)(23,29)(24,32)(27,31)(33,36,39,35)(34,42,40,41)(37,44,47,46)(38,43,48,45)(1,4,6,12)(2,7,3,9)(5,11,13,16)(8,14,10,15)(17,21)(18,19)(20,27)(22,24)(23,31)(25,28)(26,32)(29,30)(33,37,39,47)(34,43,40,45)(35,44,36,46)(38,41,48,42)(1,5,6,13)(2,8,3,10)(4,11,12,16)(7,14,9,15)(17,22,23,19)(18,21,24,31)(20,28,29,26)(25,30,32,27)(33,38)(34,44)(35,45)(36,43)(37,41)(39,48)(40,46)(42,47)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.