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