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