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