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