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