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