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