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