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