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)(17,18)(19,22)(20,23)(21,24)(25,31)(26,29)(27,30)(28,32)(33,34,38,42)(35,43,44,47)(36,41,37,40)(39,46,48,45)(1,3,6,14)(2,7,10,16)(4,12,5,13)(8,15,9,11)(17,19)(18,22)(20,25)(21,26)(23,28)(24,29)(27,32)(30,31)(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)(17,20,21,27)(18,23,24,30)(19,25,26,32)(22,28,29,31)(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)(18,24)(22,29)(23,30)(28,31)(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.