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