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