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