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