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