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