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