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