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