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