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