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)(17,18,23,25)(19,28,30,24)(20,26,31,21)(22,29,32,27)(35,42)(37,39)(43,48)(45,47)(3,9)(7,13)(10,15)(14,16)(17,19,23,30)(18,24,25,28)(20,29,31,27)(21,32,26,22)(33,34,38,41)(35,39,42,37)(36,44,46,40)(43,47,48,45)(2,6)(7,13)(8,11)(14,16)(18,25)(20,31)(24,28)(27,29)(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)(18,26)(19,29)(21,25)(22,24)(23,31)(27,30)(28,32)(33,35)(34,39)(36,43)(37,41)(38,42)(40,45)(44,47)(46,48) involution — undirected(1,3,5,9)(2,7,6,13)(4,10,12,15)(8,14,11,16)(17,21,23,26)(18,20,25,31)(19,22,30,32)(24,27,28,29)(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)(18,27)(19,21)(20,24)(23,32)(25,29)(26,30)(28,31)(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.