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