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