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