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