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