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