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