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