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