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