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