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