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