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