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